CN208236380U - A kind of outer packing element of packer solubility expanding - Google Patents
A kind of outer packing element of packer solubility expanding Download PDFInfo
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- CN208236380U CN208236380U CN201820494183.0U CN201820494183U CN208236380U CN 208236380 U CN208236380 U CN 208236380U CN 201820494183 U CN201820494183 U CN 201820494183U CN 208236380 U CN208236380 U CN 208236380U
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- packing element
- packer
- outer packing
- glue
- line
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Abstract
The utility model discloses packing elements outside a kind of packer solubility expanding; it is characterized by: using injection-compression molding or being wound into tank shaping process; whole is in hollow cylindrical; including the cylindricality skeleton formed by support ontology and the glue-line for being bonded in cylindricality skeleton periphery; it is also coated with adhesive layer in the support body surface, the glue-line can be dissolved by solid-state becomes molecule or liquid.The utility model provides a kind of outer packing element of packer solubility expanding, the outer packing element preparation process is simple, the outer packing element of production is had excellent performance, and solves removing seal for packer difficulty, and outer packing element is especially led to the problem of because of the defect of traditional packing element and distorts, fall off, blocking pipe and residual shaft bottom.
Description
Technical field
The utility model relates to the packer of oil field well application more particularly to a kind of outer glue of packer solubility expanding
Cylinder and preparation method thereof.
Background technique
Inflatable packer is made of interior packing element, support ontology, packing element connector, outer packing element.At the construction field (site) in use by
It is continuously improved in construction requirement, in addition in well and the complex environment of ground construction, outer packing element is easily distorted, falls off so that block pipe,
Deblocking failure or slow is often resulted in, or down-hole string is caused above to propose difficulty or be hampered, leads to construction party overhaul, both influences oil in this way
Field production, also increases a large amount of construction costs.
Utility model content
The purpose of the utility model is to overcome the defects of the prior art, provide a kind of outer glue of packer solubility expanding
Cylinder and preparation method thereof, the outer packing element preparation process is simple, and the outer packing element of production is had excellent performance, and it is tired to solve removing seal for packer
Difficulty especially leads to the problem of outer packing element because of the defect of traditional packing element and distorts, falls off, blocking pipe and residual shaft bottom.
The technical solution adopted in the utility model is:
A kind of outer packing element of packer solubility expanding, it is characterised in that: whole is in hollow cylindrical, including by supporting
The cylindricality skeleton and injection-compression molding or be wound into the glue-line that tank shaping process is bonded in cylindricality skeleton periphery that ontology is formed,
The surface of the support ontology is also coated with adhesive layer, and the glue-line is processed by soluble material.
Further, the glue-line can be dissolved the molecule or liquid for becoming 3 ~ 5mm by solid-state.
Further, the support ontology is metallic spring, helical steel band or spiral wire.
Further, the material of the glue-line is soluble polypropylene elastomer, and tensile strength is greater than 28MPa, is stretched
Elongation is greater than 350%, and tearing strength is greater than 60KN/m.
Further, the polypropylene elastomer is that propylene and ethylene are formed through metallocene catalyst combined polymerization, and ethylene contains
Amount is between 10~20wt%, and density is between 0.80g/cm3To 0.90g/cm3, and its melt-flow rate between 1.0g/10min with
Between 15g/10min.
Further, the material of the adhesive layer is silicon rubber bonder.
A kind of preparation method of the outer packing element of packer solubility expanding, it is characterised in that comprise the steps of:
A1. support ontology is cleaned, removes the dirt of support body surface attachment, cooling after drying, spraying and adhesive bonding
Layer；
A2. the support ontology handled well in previous step is placed in mold cavity, mold is placed on vulcanizer, heated
To 150 DEG C；
A3. glue line material is added to mold and forms interior, the heat-insulation pressure keeping 3h under 240 tons of clamp force；
A4. cool down, be depressured, demoulding obtains the outer packing element of packer solubility expanding.
A kind of preparation method of the outer packing element of packer solubility expanding, it is characterised in that comprise the steps of:
B1. support ontology is cleaned, removes the dirt of support body surface attachment, cooling after drying, spraying and adhesive bonding
Layer；
B2., glue line material is refined to the film at 3 ~ 5mm thickness using rubber mixing machine；
B3. it by the film package support ontology that is mounted on that treated, is then fed into vulcanizing tank, is warming up to 150 DEG C,
It is forced into 10MPa, heat-insulation pressure keeping 3h, cooling, decompression obtain the outer packing element of packer solubility expanding.
The beneficial effects of the utility model are:
For the outer packing element pressure-bearing of the packer solubility expanding prepared in the utility model not less than 50 ~ 70MPa, heatproof is not low
In 95 ~ 120 DEG C, dissolution time 9 ~ 25 days.Outer packing element is after the completion of pressing crack construction, in the clear water of certain temperature (80 ~ 95 DEG C)
Or returning in drain, fracturing fluid and oil mixing with water environment containing certain chlorine ion concentration, be dissolved as 3 ~ 5mm molecule or
Person's liquid, solve removing seal for packer difficulty, especially generated because of the defect of traditional packing element outer packing element distort, fall off, block pipe,
The problem of blocking hoistway and residual shaft bottom.And injection-compression molding or it is wound into the simple process that tank shaping process makes outer packing element,
It is at low cost.
Detailed description of the invention
Fig. 1 is the schematic cross-sectional view of the outer packing element of packer solubility expanding in the utility model.
Specific embodiment
In order to be more clearly understood the advantages of making the purpose of this utility model and technical solution, below in conjunction with attached drawing and reality
Example, the present invention will be further described in detail.
As described in Fig. 1, the outer packing element of a kind of packer solubility expanding, whole is in hollow cylindrical, including by supporting
The cylindricality skeleton and pass through injection-compression molding or be wound into the glue that tank shaping process is bonded in cylindricality skeleton periphery that ontology 1 is formed
Layer 2 is also coated with adhesive layer 3 on the surface of the support ontology, and the glue-line is made of soluble material.
Further, the glue-line 2 can be dissolved by solid-state becomes 3-5mm molecule or liquid.
Further, the support ontology 1 is metallic spring, helical steel band or spiral wire.
Further, the material of the glue-line 2 is soluble polypropylene elastomer, and tensile strength is greater than 28MPa, is stretched
Elongation is greater than 350%, and tearing strength is greater than 60KN/m.
Further, the polypropylene elastomer is that propylene and ethylene are formed through metallocene catalyst combined polymerization, and ethylene contains
Amount is between 10~20wt%, and density is between 0.80g/cm3 to 0.90g/cm3, and its melt-flow rate is between 1.0g/10min
Between 15g/10min.
Further, the material of the adhesive layer 3 is silicon rubber bonder.
A kind of preparation method of the outer packing element of packer solubility expanding comprising the steps of:
A1. support ontology 1 is cleaned, removes the dirt of support 1 surface of ontology attachment, cooling after drying, spraying is viscous
Connect layer 3；
A2. the support ontology 1 handled well in previous step is placed in mold cavity, mold is placed on vulcanizer, is added
Heat is to 150 DEG C；
A3. 2 material of glue-line is added to mold and forms interior, the heat-insulation pressure keeping 3h under 240 tons of clamp force；
A4. cool down, be depressured, demoulding obtains the outer packing element of packer solubility expanding.
70MPa is greater than using the outer packing element pressure-bearing of above method preparation, heatproof is greater than 95 DEG C, dissolution time 15 days.
A kind of preparation method of the outer packing element of packer solubility expanding comprising the steps of:
B1. support ontology 1 is cleaned, removes the dirt of support 1 surface of ontology attachment, cooling after drying, spraying is viscous
Connect layer 3；
B2., 2 material of glue-line is refined to the film at 3 ~ 5mm thickness using rubber mixing machine；
B3. it by the film package support ontology 1 that is mounted on that treated, is then fed into vulcanizing tank, is warming up to 150
DEG C, it is forced into 10MPa, heat-insulation pressure keeping 3h, cooling, decompression obtain the outer packing element of packer solubility expanding.
70MPa is greater than using the outer packing element pressure-bearing of above method preparation, heatproof is greater than 120 DEG C, dissolution time 10 days.
Claims (5)
1. a kind of outer packing element of packer solubility expanding, it is characterised in that: whole is in hollow cylindrical, including by support ontology
The cylindricality skeleton and injection-compression molding of formation are wound into the glue-line that tank shaping process is bonded in cylindricality skeleton periphery, described
The surface of support ontology is also coated with adhesive layer, and the glue-line is processed by soluble material.
2. a kind of outer packing element of packer solubility expanding according to claim 1, it is characterised in that: the glue-line can be by
Solid-state dissolution becomes the molecule or liquid of 3 ~ 5mm.
3. a kind of outer packing element of packer solubility expanding according to claim 1, it is characterised in that: the support ontology
For metallic spring, helical steel band or spiral wire.
4. a kind of outer packing element of packer solubility expanding according to claim 1, it is characterised in that: the material of the glue-line
Matter is soluble polypropylene elastomer, and tensile strength is greater than 28MPa, and tensile elongation is greater than 350%, and tearing strength is greater than
60KN/m。
5. a kind of outer packing element of packer solubility expanding according to claim 1, it is characterised in that: the adhesive layer
Material is silicon rubber bonder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820494183.0U CN208236380U (en) | 2018-04-09 | 2018-04-09 | A kind of outer packing element of packer solubility expanding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820494183.0U CN208236380U (en) | 2018-04-09 | 2018-04-09 | A kind of outer packing element of packer solubility expanding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208236380U true CN208236380U (en) | 2018-12-14 |
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| CN201820494183.0U Active CN208236380U (en) | 2018-04-09 | 2018-04-09 | A kind of outer packing element of packer solubility expanding |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108316882A (en) * | 2018-04-09 | 2018-07-24 | 雅安万利橡塑密封技术有限责任公司 | Outer packing element of a kind of packer solubility expanding and preparation method thereof |
-
2018
- 2018-04-09 CN CN201820494183.0U patent/CN208236380U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108316882A (en) * | 2018-04-09 | 2018-07-24 | 雅安万利橡塑密封技术有限责任公司 | Outer packing element of a kind of packer solubility expanding and preparation method thereof |
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